chore: Add cpr npm dependency for file copying in build script

Author: tacxou

package.json

@@ -51,6 +51,7 @@
     "@types/supertest": "^6.0.2",
     "@typescript-eslint/eslint-plugin": "^7.9.0",
     "@typescript-eslint/parser": "^7.9.0",
+    "cpr": "^3.0.1",
     "eslint": "^9.2.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-prettier": "^5.1.3",